In the middle of a New England forest sit the crumbling ruins of World War II-era ammunition storage bunkers.

A luxury hotel constructed out of a former jail.

Former home of an abolitionist couple who escaped slavery and established the most active Underground Railroad stop in Boston.

The Boston home of a conductor on the Underground Railroad.

A plaque marking the famous abolitionist's birthplace often overlooked by visitors to the nearby Charles Sumner House.

Historic home of a Black veteran of the American Revolution and one of the earliest civil rights activists in the United States.

The former home of a Boston physician whose murder led to a revolution in forensic science.

Dedicated to a colonial woman who was hanged for being a Quaker.

This headstone marks the grave of an 11-year-old boy killed during clashes in the streets over the boycotting of British goods.

The pleasant woodland cemetery that has inspired more than its fair share of wild legends.

A collection of haunted objects and macabre oddities under one roof.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

The wild west is still alive and well at this authentic mining town watering hole.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

Settled by the Church of Jesus Christ of Latter-day Saints in 1859, this abandoned frontier town has appeared in several films.

A late-19th century diversion canal built by hand crosses Bryce Canyon National Park and is still in use.

This ancient cave is home to a museum, bar, and is filled with fluorescent minerals.

Nature has shaped this drainage tunnel into the digestive tract of a mighty beast.

The unusual patterns in this rock formation result from two distinct modes of weathering.

A tunnel with windows, so you don't miss out on the impressive views.

This quiet park's strange sedimentary spires were named after Kodak's color film.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

A striking, menacing sandstone peak towering above a landscape that's equal parts Mordor and the Moon.